Pump.



G. A. STARR.

FUMP.

APPLICATION FILED SEPT..7, 1909.

Patented Jul-1e 7 2 SHEETS-SERT 1.

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A. STARR.

PUMP. AIBLIOATION TLED SEPT. 7. 1909.

Patented June 7, 1910.

2 SHEETS-SHEET Z.

ANDREW E. GRAHAM Freins, wAsmNGoN. n c

GEORGE A. STARR, OF FALLS CITY, OREGON.

PUMP.

Speccaton of 'Letters Patent.

Application led September 7, 1909.

Patented J une 7, 1910.

serial No. 516,488.

To cZZ whom 'it may concern:

Be it known that I, GEORGE A. STARR, a citizen of the United States,`resident of Falls City, in the county of Polk and State of Oregon, havemade a certain new and useful Invention in Pumps; and I declare thefollowing to be a full, clear, and exact description of the same, suchas will enable others skilled in the art to which it appertains to makeand use the invention, reference being had to the accompanying drawings,and to letters and figures of reference marked thereon, which form apart of this specication.

Figure l is a central vertical section of the invention as applied andpartly broken away. Fig. 2 is a central vertical section ofthe inlet andoutlet valves on a larger scale, the valves being shown as one open andone closed. Fig. 3 is a similar View with the valves oppositelypositioned. Fig. 4 is a detail perspective view of one of the washersfor the valve rings. similar view of one of the loose valve rings. Fig.6 is a side view partly broken away of a modified form of the inventionas applied. Fig. 7 is a section on the line 7 7, Fig. 6. Fig. 8 is adetail sectional view on a larger scale of the outlet check valve forthe modified form of the invention.

The invention has relation to pumps, having for its object the revisionof an improved pump which wi l be balanced in its action, being animprovement upon the balance pump of my Patent Number 665,807, grantedJanuary 8, 1901, and it consists in the novel construction andcombinations of parts as hereinafter set forth.

. In the accompanying drawings, illustrating the invention, the lettersa, a, designate the pump cylinders, two of which are employed, and thelower ends of which have each a perforated screen box b.

c, is a hollow piston rod working in each cylinder a, and having slidingbearings c', in a stufng box c2, at the upper end of said cylinder, saidrod having a piston head d, working in the cylinder and having anannular concave valve seat cZ, provided with perforations d2, and withwhich a valve ring e, of circular cross-section formed of soft rubber orother suitable material is normally in engagement. This valve ring ispreferably hollow.

The hollow piston rod is connected with the piston head by a stem f,extending from.

Fig. 5 is a4 the closed bottom f', of the piston rod and having outwardextending branches f2, connected with the head. Perforations g, areformed in the piston rod walls just above its closed bottom.

A fiat washer annulus It, is located above the valve ring, aiding inpressing down the valve ring to its seat to form a watertight joint.Upon upward movement of the valve and washer a spider-form check it',carried by the stem f, contacts with the washer and prevents furtherrise of the valve.

At the upper end of the hollow piston rod c, is provided an upper pistonhead c', working in the standpipe and having an annular concave valveseat Z', having perforations 2, communicating with the interior of thehollow piston below and with the standpipe above, a loose valve ring 3,having engagement with said seat to close the valve perforations. A flatannular loose washer 4, and a check 5, are provided above the loosevalve ring as in the valve for the lower piston head. Thus upon upwardmovement of the hollow piston rod and its piston head a vacuum will becreated, causing the water to rise in the cylinder through atmosphericpressure, the valve e, being closed, and upon the down stroke the valvee, will open to admit the water in the cylinder above the piston headand into the interior of the hollow rod c, through perforations g, thevalve i, being held closed by the weight of the water in the standpipeabove it. Upon the upstroke again the valve e, will close, and the waterwill rise in the cylinder below the piston head, while the valve ring 3,will open and the load of water above the piston head will pass throughthe perforations 712, into the standpipe above the upper piston head.

The standpipe y', extends upward to the point of discharge, a connectingrod Z, having sliding bearings in a stuiiing box Z, at the upper end ofthe standpipe and having attachment at its lower end to the hollowpiston rod.

The two standpipes j, j, have a balance wheel m, between the same, aflexible connection m', extending over said wheel and having attachmentat one end of the wheel at m2, and at its other end to a rod Z. Thus twoiiexible connections or Vropes m, are required for the two pumps.

The balance wheel, which is designed to be 4turned back and forth in avibratory manner, may be operated in any suitable manner, as forinstance by means of a connectingrod a, having a power connection at 0.

In F ig. 6 of the drawings is shown a modified form of the invention,designed for use for light domestic purposes, and wherein the standpipesare omitted and the hollow piston rods extended upwardly to the surfaceof the earth, having discharge nozzles at p. An upper check valve 3, isemployed in the hollow piston rod as in the form of the invention firstdescribed, the valve seat perfor-ations and upper stop or check havingsimilar reference letters applied thereto. g, g, represents rope clampsupon each hollow piston rod extension, the rope Q, passing over thebalance wheel being made fast thereto at one end at g2, and having theopposite end thereof connected with the rope clamp to pull upward uponthe hollow rod. A second rope Q, passes under the balance wheel in theopposite direction, having one end fast to the. wheel at 1", and itsopposite end connected to the upper rope clamp g, to pull downward uponthe hollow rod.

If the water is to be carried any distance from its point of dischargefor the pump, hose or pipe may be readily laid for this purpose andconnected to the standpipes. It will be noted that the loads of water inthe two pumps balance each other, and that friction inmy pump is reducedto a minimum.

In the form of pump first described, which is designed for heavy worksuch as irrigation purposes, the weight of the hollow piston, the pistonhead etc. is relied upon to cause the downward movement of the pistonhead and the rise of the water thereabove. The rod Z, connecting thehollow piston rod with the operating mechanism may be dispensed with andthe rope or cable extended downward and connected with the hollow 5 rod,if desired, in a deep shaft.

A walking beam such as shown in my patent hereinbef'ore referred to maybe substituted for the balance wheel.

A waste cock 1, is provided in each standpipe above the outlet port andvalve of the upper piston head, said cock being held closed by theweight s, and being designed to be opened by the upward extendingoperating cord or wire t, when it is desired to drain the water from thestandpipe. A similar waste cock is provided above the outlet check valvein the modified form of' the invention shown in Figs. 6 and 7 of thedrawings, having similar letters of reference applied thereto,differentiated by the exponent In sinking a well or shaft where there isa large volume of water and it is also necessary to blast rocks, thecylinder need not be placedn in the water, but may be secured as farabove the water as is necessary within the limit of atmospheric action,and flexible section hose (not shown) may be connected to the lower endsof the cylinders. When it becomes necessary to blast, the hose may beremoved. After the blast, the cylinders may be submerged to any de th.

For drilled wells, or for light comestic purposes, but one of thecylinders may be employed. In the case of drilled wells, especiallywhere the bore is not large enough to admit of' two cylinders, asingle-cylinder pump of this character with a counterbalance attachmentwill be found of great value.

Having thus described my invention, what I claim as new and desiretosecure by Letters Patent is:

l. In a pump, a cylinder having a closed upper head, an inlet port, alower piston head working in said cylinder and having inlet ports and avalve device controlling the same, a standpipe, a tubular piston rodhaving means of connection vwith said head located centrally of the headwithin said valve device, said,rod having communication at its lower endportion with the cylinder and being provided with sliding bearings inthe upper head of the cylinder, an upper piston head forthe piston rodwork- .ing in saidstandpipe and having outlet ports and a valve devicecontrolling the same, and an operating device having means of connectionwith' said upper piston head located centrally of the head and in linewith said piston rod with-in the valve device.-

2. In a pump, a cylinder having a closed upper head, an inlet port, apiston head working in said cylinder and having inlet ports and aring-form valve, a tubular piston rod having means ,of connection withsaid head located centrally of the head within said ring-form valve,said rod having communication at its lower end portion with thecylinder, being provided with sliding bearings in the upper head of thecylinder andv having an upper outlet port andI valve located withoutsaid cylinder, and means for operating the piston head and its hollowrod. y

3. In a pump, a cylinder having a closed upper head, an inlet port, apiston head working in said cylinder and having an annular concave valveseat provided with perforations, a loose ring-form valve for engagementwith said seat, a loose annular washer above said valve, a tubularpiston rod having means of connection withv said head lo` catedcentrally of the head within said ringform valve, said rod havingcommunication at its lower end portion with the cylinder and beingprovided with sliding bearings in the upper head of the cylinder andhaving an upper outlet port and valve located without the cylinder, andmeans for operating said piston head and its hollow rod.

4.- In a balance pump, double cylinders l having each a closed upperhead, an inlet port, a lower piston head working in the cylinder andhaving outlet ports and a valve device controlling the same, doublestand- Vpipes, a tubular piston rod for each cylinder having means ofconnection with said head located centrally of the head withinl saidvalve device, said rod having communication at its lower end portionwith the cylinder and being provided with sliding bearings in the u perhead of the cylinder, an upper piston iead for the piston rod working inthe standpipe corresponding thereto and having outlet ports and a valvedevice controlling the same and vibratory operating means havingopposite flexible connections with opposite hollow rods having means ofconnection with the upper piston heads located centrally of said headsin line with the hollow piston rods and within the valve device of eachhead.

5. In a pump, a cylinder having a closed upper head, an inlet port, alower piston head working in said cylinder and having inlet ports and aring-form valve, a standpipe, a tubular piston rod of the same diameterthroughout having means of connection with said head located centrallyof the head within said ring-form valve, said rod having communicationat its lower end portion with the cylinder and being provided withsliding bearings in the upper head of -the piston rod, an upper pistonhead for the cylinder working in said standpipe and having outlet portsand a ring-form valve and an operating device having means of connectionwith the upper piston head located centrally of and in line with saidpiston rod within said ring form valve.

In testimony whereof I ai'rix my signature, in presence of twowitnesses.

GEORGE A. STARR. lVitnesses ALTER L. Toozn, SADIE A. Toozn.

